<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>Title</title>
    <style>
        .div01{
            width: 100px;
            height: 100px;
            border: 3px solid red;
            background-color: blue;
        }
        img{
            width: 50px;
            height: 50px;
        }
    </style>
</head>
<body>
<div class="div01">
    <img src="qrcodelogo.jpg">
</div>
</body>
</html>